The Harry Potter series __________________ by J. K. Rowling.
written
is written
wrote
was written
The most famous portrait in the world, Mona Lisa, ________________ by Leonardo da Vinci.
is painted
was painted
were painted
has been painted
X-rays __________________ in 1895 by Wilhelm Conrad Roentgen, who was a German Professor.
is discovered
discovered
are discovered
were discovered
Scissors ___________________ for cutting thin materials, such as paper and metal foil.
use
used
are used
is used
The movie Avatar _______________ by James Cameron.
is being directed
is directed
was directed
directed
Wooden toothpickes ______________ from birch wood.
were cut
will be cut
are cut
have been cut
The last Olympic Games _____________ in Tokyo.
will be held
were held
have been held
are held
When ___________ the Great Wall of China ____________?
built / were
is / build
were / built
was / built
Cars _______________ in factories.
produced
are produced
were produced
is being produced
The tunnel _________________________ at the moment, so it's closed for all traffic.
is repaired
is being repaired
will be repaired
repaired
Olives _______________ in Mediterranean countries.
is grown
are grown
has been grown
was grown
Brilliant ideas ________ generally __________.
were / copied
are / copied
is / copied
have been / copied
The light bulb ____________________ by Thomas Edison.
were invented
has not been invented
was not invented
were not invented
How often __________ hotel carpets __________?
are / cleaned
is / cleaned
will be / cleaned
was/ cleaned
Google ____________ officially ____________ in 1998.
has been launched
is launched
were launched
was launched
